Overview
This ZF 4657.024.142 4 WG 190 Powershift Transmission Assembly is a complete, fully assembled unit designed for heavy-duty industrial and agricultural machinery. As a core component of the WG 190 series, this assembly integrates the main gear sets, clutch packs, and hydraulic control system into a single ready-to-install package. The SKU 4657.024.142 serves as the primary structural backbone of the transmission, housing all rotating elements and supporting the torque flow from the engine to the driveline. When rebuilding a WG 190, this complete unit is often paired with a new TRANSMISSION HOUSING to ensure proper alignment and sealing of the internal components.
Symptoms of Failure
When the ZF 4657.024.142 assembly begins to fail, operators typically notice these specific issues:
- Delayed engagement or gear slipping – Worn internal seals or damaged clutch packs within the assembly cause hesitation when shifting from neutral to forward or reverse, especially under load.
- External oil leaks at the housing joints – Cracks or fatigue in the main casing lead to fluid seepage around the mating surfaces, often requiring replacement of the HOUS.FRONT SECT or rear sections.
- Unusual grinding or whining noises – Bearing wear inside the complete unit produces metallic sounds that intensify with engine RPM, indicating imminent internal failure.
- Overheating and erratic shifting – Blocked oil passages or a failing torque converter within the assembly cause the transmission to run hot and shift harshly between gears.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number / SKU | 4657.024.142 |
| Series | WG 190 (4 WG 190) |
| Type | Powershift Transmission Assembly (Complete Unit) |
| Overall Length (approx.) | 780 mm |
| Overall Width (approx.) | 520 mm |
| Overall Height (approx.) | 590 mm |
| Dry Weight (approx.) | 285 kg |
| Housing Material | High-strength cast iron / aluminum alloy |
| OEM Reference | ZF 4657.024.142 |
| Related Fastener | CAP SCREW (M12 x 1.5) |
| Related Seal | SCREEN SHEET (filter mesh) |
Compatibility
This complete unit is engineered for the ZF WG 190 series powershift transmissions. It is directly compatible with the following ZF models:
- ZF WG 180 (with adapter modifications)
- ZF WG 190 (direct fit)
- ZF WG 200 (with housing swap)
- ZF 4 WG 190 (all variants)
For a full rebuild, ensure the HOUSING REAR PART and HOUSING REAR SECTION are inspected for cracks, as these sections bear the highest stress during operation.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101078 | TRANSMISSION HOUSING | Main structural casing for gear sets |
| 4657201166 | HOUS.FRONT SECT | Front section housing input shaft |
| 4657201168 | HOUSING REAR PART | Rear casing for output shaft support |
| 4657298101 | HOUSING REAR SECTION | Additional rear section for PTO mounting |
| 0631306816 | CYLINDRICAL PIN | Alignment dowel for housing mating |
| 0636100801 | CAP SCREW | Fastener for housing bolts |
| 4656301148 | FIXING PLATE | Retains bearing in housing bore |
| 4657301032 | SCREEN SHEET | Fine mesh filter for oil circuit |
| 4657301033 | SCREEN SHEET | Coarse mesh pre-filter |
| 0636100803 | CAP SCREW | Secondary fastener for rear section |
Frequently Asked Questions
Q: Can the ZF 4657.024.142 be installed without replacing the housing sections?
A: Yes, but we strongly recommend inspecting the TRANSMISSION HOUSING and both rear sections for wear. Cracks in these areas will cause oil leaks and misalignment.
Q: What is the typical lifespan of this complete unit in a loader application?
A: With proper maintenance and clean oil, the assembly can last 8,000–12,000 operating hours. Failure often begins with worn screen sheets like SCREEN SHEET 4657301032.
Q: Does this part include the fixing plates and cap screws?
A: No, the complete unit is supplied as a bare assembly. You will need to order the FIXING PLATE and CAP SCREW separately for installation.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
Request a Quote →
